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Join Date: Mar 2007
Location: Rochester, NY
Posts: 327
? about wastegate spring rates

I searched "wastegate springs", didn't find my answer.

I am looking to purchase a tial 38mm wastegate kit. Am I understanding this correctly, that if I get one with a 1 bar spring that I won't be able to operate the car at less than 1 bar of boost (14.7 +/- psi)?

Thanks in advance...

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1983 944
Old 12-25-2007, 09:49 AM
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yes. ideally, you should get a .7bar spring to be safe and run the wastegate in dualport mode.

it's good you asked this question. a lot of people misunderstand and get a 1bar spring, which removes the failsafe ability of the wastegate.
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'89 turbo-s (2.7, wolf3d ems, garrett dbb turbo, tial 46mm, etc. fast!)
Old 12-25-2007, 12:56 PM
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Thanks! I wanted to make sure I was understanding that correctly before ordering.

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1983 944
Old 12-25-2007, 03:19 PM
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